Linear actuator



FIG. 1 is a perspective view of a linear actuator showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and

FIG. 8 is second perspective view showing the linear actuator; and,

FIG. 9 is a third perspective view showing the linear actuator.

The broken lines in the drawings depict portions of the linear actuator which form no part of the claimed design. 

CLAIM The ornamental design for a linear actuator, as shown and described. 